基于生产特征分析X区块页岩气井井筒积液规律

Analysis of Wellbore Liquid Loading in Shale Gas Well in X Block Based on Production Characteristics

摘要: 在页岩气生产过程中，井筒积液是一个攻关难题；研究页岩气井井筒积液规律有利于深化对页岩气生产特征的认识，促进页岩气的高效开发。本文以X区块99口井为研究对象，从其生产数据入手，分析了页岩气生产过程中井口压力、产气量和产水量的变化规律；并在此基础上，采用生产动态分析判断了页岩气井井筒积液情况，探索了井筒积液规律。结果表明，产气量是井筒积液的较敏感参数。

Abstract: In the process of shale gas production, wellbore liquid loading is a key problem. Studying the law of wellbore liquid loading in shale gas well is conducive to deepening the understanding of shale gas production characteristics and promoting the efficient development of shale gas. Based on the production data of 99 wells in X block, this paper analyzed the variation law of wellhead pressure, gas production and water production in shale gas production process, and on this basis, judged the wellbore fluid accumulation in shale gas wells, and explored the wellbore liquid loading law. It was found that gas production is a sensitive parameter for wellbore liquid loading.